ES2001500A6 - Titanates of barium and strontium, and process for preparing the same. - Google Patents

Titanates of barium and strontium, and process for preparing the same.

Info

Publication number
ES2001500A6
ES2001500A6 ES8601004A ES8601004A ES2001500A6 ES 2001500 A6 ES2001500 A6 ES 2001500A6 ES 8601004 A ES8601004 A ES 8601004A ES 8601004 A ES8601004 A ES 8601004A ES 2001500 A6 ES2001500 A6 ES 2001500A6
Authority
ES
Spain
Prior art keywords
peroxidic
compound
titanates
precursor
strontium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES8601004A
Other languages
Spanish (es)
Inventor
Paola Gherardi
Egon Matijevic
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Montedison SpA
Original Assignee
Montedison SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Montedison SpA filed Critical Montedison SpA
Publication of ES2001500A6 publication Critical patent/ES2001500A6/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/003—Titanates
    • C01G23/006—Alkaline earth titanates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/02—Amorphous compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • C01P2004/52—Particles with a specific particle size distribution highly monodisperse size distribution
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer

Abstract

Titanates of barium, strontium, or mixed barium and strontium consisting essentially of solid, non-aggregated particles having diameters ranging from 0.05 to 1 micron and a narrow particle size distribution expressed by the polydispersity index, dw/dn, not greater than 1.20, where dw is the weight average diameter and dn is the number average diameter, said particles being essentially perfectly spherical with a total mean axial ratio of at least 0.93. These titanates are prepared by a process which comprises precipitating of a peroxidic precursor having the same morphological characteristics of the titanates. The peroxidic precursor is obtained by heating an alkaline solution comprising a complex of a titanium compound with a peroxidic compound, an M2+ compound, wherein M is Ba, Sr or mixtures thereof, and a compound Z capable of complexing with the M2+ ion oxidizable by the peroxidic compound under the conditions of reaction to produce soluble decomposition products and provide a homogeneous precipitation of the peroxidic precursor comprising titanium and M2+. Subsequently the precursor is heated to a temperature of at least 100 DEG C. to obtain the corresponding titanate having the above-indicated morphological characteristics.
ES8601004A 1985-08-12 1986-08-11 Titanates of barium and strontium, and process for preparing the same. Expired ES2001500A6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT21921/85A IT1188182B (en) 1985-08-12 1985-08-12 TITANATED IN THE FORM OF SPHERICAL PARTICLES AND PROCESS FOR THEIR PREPARATION

Publications (1)

Publication Number Publication Date
ES2001500A6 true ES2001500A6 (en) 1988-06-01

Family

ID=11188815

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8601004A Expired ES2001500A6 (en) 1985-08-12 1986-08-11 Titanates of barium and strontium, and process for preparing the same.

Country Status (7)

Country Link
US (1) US4755373A (en)
EP (1) EP0212935A3 (en)
JP (1) JPS62283816A (en)
AU (1) AU591158B2 (en)
CA (1) CA1266162A (en)
ES (1) ES2001500A6 (en)
IT (1) IT1188182B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4946810A (en) * 1987-08-24 1990-08-07 The Dow Chemical Company Preparation of ABO3 compounds from mixed metal aromatic coordination complexes
US4937062A (en) * 1988-03-07 1990-06-26 Cabot Corporation High surface area metal oxide foams and method of producing the same
US5147630A (en) * 1989-06-05 1992-09-15 Reznek Steven R Method of producing alumina foams
IT1270828B (en) * 1993-09-03 1997-05-13 Chon Int Co Ltd PROCESS FOR THE SYNTHESIS OF CRYSTAL CERAMIC POWDERS OF PEROVSKITE COMPOUNDS
US5871872A (en) * 1997-05-30 1999-02-16 Shipley Company, Ll.C. Dye incorporated pigments and products made from same
US5885343A (en) * 1997-05-30 1999-03-23 Shipley Company, L.L.C. Dyed silica pigments and products made from same
EP1013608A4 (en) * 1998-05-20 2007-11-07 Toho Titanium Co Ltd Barium titanate powder
JP4033972B2 (en) * 1998-06-10 2008-01-16 インダストリアル リサーチ リミテッド Method for producing complex
US6264912B1 (en) * 1999-09-10 2001-07-24 Ut-Battelle, Llc Methods for producing monodispersed particles of barium titanate
TWI291936B (en) * 2001-05-31 2008-01-01 Tdk Corp
JP4212032B2 (en) * 2001-05-31 2009-01-21 Ｔｄｋ株式会社 Composite materials and electronic components
GB0126284D0 (en) * 2001-11-01 2002-01-02 Oxonica Ltd Water soluble luminescent nanoparticles
CN1313378C (en) * 2002-09-24 2007-05-02 北京化工大学 method for preparation of Sr titanate powder
US7919069B2 (en) * 2007-06-13 2011-04-05 Lehigh University Rapid synthesis of titanate nanomaterials
JP5552603B2 (en) * 2012-05-11 2014-07-16 学校法人東京理科大学 Method for producing polycrystalline barium titanate particles
JP6068749B2 (en) * 2013-09-30 2017-01-25 株式会社ノリタケカンパニーリミテド Barium titanate fine particles, barium titanate fine particles, and methods for producing them
JP7195744B2 (en) * 2018-03-01 2022-12-26 キヤノン株式会社 toner
CN109264774A (en) 2018-08-30 2019-01-25 中国石油天然气股份有限公司 A kind of preparation method of the titanate with hierarchical structure of size tunable, metatitanic acid and titanium dioxide
US11705251B2 (en) 2019-12-16 2023-07-18 Zeno Power Systems, Inc. Fuel design and shielding design for radioisotope thermoelectric generators

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725539A (en) * 1971-04-28 1973-04-03 Dow Chemical Co Preparation of alkaline earth metal titanate
US4061583A (en) * 1974-03-13 1977-12-06 Murata Manufacturing Co., Ltd. Preparation of titanates
DE2433279C2 (en) * 1974-03-13 1985-07-04 Murata Manufacturing Co., Ltd., Nagaokakyo, Kyoto Process for the production of metal titanates
CH609021A5 (en) * 1974-06-20 1979-02-15 Union Carbide Corp Process for the preparation of finely divided oxygenated metal compounds
AU548117B2 (en) * 1981-12-21 1985-11-21 Matsushita Electric Industrial Co., Ltd. High dielectric constant porcelain composition
JPS5945928A (en) * 1982-09-08 1984-03-15 Sony Corp Preparation of fine particle from strontium titanate
US4534956A (en) * 1983-07-08 1985-08-13 General Electric Company Molten salt synthesis of barium and/or strontium titanate powder
DE3469161D1 (en) * 1983-10-12 1988-03-10 Asahi Chemical Ind Titanate powder and process for producing the same

Also Published As

Publication number Publication date
EP0212935A2 (en) 1987-03-04
JPS62283816A (en) 1987-12-09
CA1266162A (en) 1990-02-27
AU591158B2 (en) 1989-11-30
AU6107586A (en) 1987-02-19
IT8521921A0 (en) 1985-08-12
IT1188182B (en) 1988-01-07
EP0212935A3 (en) 1989-03-08
US4755373A (en) 1988-07-05

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Legal Events

Date Code Title Description
SA6 Expiration date (snapshot 920101)

Free format text: 2006-08-11

FD1A Patent lapsed

Effective date: 20001009